Decimal Point Trick Worksheet

Maths tricks trick 24: Where does the decimal point go? · Set 854 · 40 questions

The trick (Count the places): Forget the points and multiply the whole numbers. Count all the digits after the points in the question. Put the point that many places from the right, then check by rounding.

1. 1.0.12 × 3 — where does the decimal point go? (a) 0.0036 (b) 0.036 (c) 0.36 (d) 3.6
2. 2.5.7 × 0.6 — where does the decimal point go? (a) 34.2 (b) 0.0342 (c) 3.42 (d) 0.342
3. 3.2.7 × 0.3 — where does the decimal point go? (a) 0.0081 (b) 0.81 (c) 8.1 (d) 0.081
4. 4.0.65 × 3 — where does the decimal point go? (a) 1.95 (b) 0.0195 (c) 0.195 (d) 19.5
5. 5.0.57 × 2.3 — where does the decimal point go? (a) 13.11 (b) 0.1311 (c) 1.311 (d) 0.01311
6. 6.0.33 × 18 — where does the decimal point go? (a) 0.594 (b) 59.4 (c) 0.0594 (d) 5.94
7. 7.1.6 × 0.6 — where does the decimal point go? (a) 0.96 (b) 0.096 (c) 0.0096 (d) 9.6
8. 8.0.17 × 0.3 — where does the decimal point go? (a) 0.051 (b) 0.51 (c) 0.0051 (d) 0.00051
9. 9.5.5 × 27 — where does the decimal point go? (a) 14.85 (b) 1.485 (c) 1485 (d) 148.5
10. 10.5.5 × 2.7 — where does the decimal point go? (a) 14.85 (b) 1.485 (c) 0.1485 (d) 148.5
11. 11.6.2 × 7 — where does the decimal point go? (a) 4.34 (b) 43.4 (c) 0.434 (d) 434
12. 12.0.99 × 32 — where does the decimal point go? (a) 31.68 (b) 3.168 (c) 0.3168 (d) 316.8
13. 13.8.3 × 44 — where does the decimal point go? (a) 365.2 (b) 36.52 (c) 3652 (d) 3.652
14. 14.3.7 × 3 — where does the decimal point go? (a) 0.111 (b) 111 (c) 11.1 (d) 1.11
15. 15.9.4 × 17 — where does the decimal point go? (a) 15.98 (b) 1.598 (c) 1598 (d) 159.8
16. 16.2.2 × 0.3 — where does the decimal point go? (a) 0.066 (b) 0.0066 (c) 0.66 (d) 6.6
17. 17.0.87 × 38 — where does the decimal point go? (a) 0.3306 (b) 33.06 (c) 3.306 (d) 330.6
18. 18.7.4 × 3 — where does the decimal point go? (a) 22.2 (b) 222 (c) 0.222 (d) 2.22
19. 19.0.36 × 0.2 — where does the decimal point go? (a) 0.00072 (b) 0.072 (c) 0.72 (d) 0.0072
20. 20.0.15 × 7 — where does the decimal point go? (a) 10.5 (b) 0.105 (c) 1.05 (d) 0.0105
21. 21.8.8 × 0.7 — where does the decimal point go? (a) 61.6 (b) 6.16 (c) 0.0616 (d) 0.616
22. 22.0.24 × 29 — where does the decimal point go? (a) 69.6 (b) 6.96 (c) 0.696 (d) 0.0696
23. 23.0.45 × 41 — where does the decimal point go? (a) 0.1845 (b) 184.5 (c) 18.45 (d) 1.845
24. 24.0.82 × 29 — where does the decimal point go? (a) 23.78 (b) 0.2378 (c) 237.8 (d) 2.378
25. 25.5.9 × 14 — where does the decimal point go? (a) 8.26 (b) 0.826 (c) 826 (d) 82.6
26. 26.0.27 × 0.9 — where does the decimal point go? (a) 2.43 (b) 0.0243 (c) 0.00243 (d) 0.243
27. 27.6.9 × 33 — where does the decimal point go? (a) 2277 (b) 2.277 (c) 22.77 (d) 227.7
28. 28.4.3 × 0.7 — where does the decimal point go? (a) 0.301 (b) 30.1 (c) 0.0301 (d) 3.01
29. 29.7.7 × 9 — where does the decimal point go? (a) 693 (b) 69.3 (c) 6.93 (d) 0.693
30. 30.0.27 × 2 — where does the decimal point go? (a) 0.054 (b) 5.4 (c) 0.54 (d) 0.0054
31. 31.4.3 × 1.2 — where does the decimal point go? (a) 0.516 (b) 5.16 (c) 51.6 (d) 0.0516
32. 32.0.22 × 0.3 — where does the decimal point go? (a) 0.66 (b) 0.00066 (c) 0.0066 (d) 0.066
33. 33.3.6 × 18 — where does the decimal point go? (a) 648 (b) 64.8 (c) 6.48 (d) 0.648
34. 34.0.96 × 0.3 — where does the decimal point go? (a) 0.0288 (b) 0.00288 (c) 2.88 (d) 0.288
35. 35.0.13 × 19 — where does the decimal point go? (a) 0.247 (b) 24.7 (c) 0.0247 (d) 2.47
36. 36.8.7 × 0.5 — where does the decimal point go? (a) 0.435 (b) 43.5 (c) 0.0435 (d) 4.35
37. 37.6.2 × 0.2 — where does the decimal point go? (a) 1.24 (b) 12.4 (c) 0.0124 (d) 0.124
38. 38.0.41 × 0.6 — where does the decimal point go? (a) 0.246 (b) 2.46 (c) 0.0246 (d) 0.00246
39. 39.0.79 × 24 — where does the decimal point go? (a) 1.896 (b) 0.1896 (c) 18.96 (d) 189.6
40. 40.0.97 × 5 — where does the decimal point go? (a) 48.5 (b) 4.85 (c) 0.485 (d) 0.0485

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